function varargout = Lab6(varargin)
% LAB6 MATLAB code for Lab6.fig
%      LAB6, by itself, creates a new LAB6 or raises the existing
%      singleton*.
%
%      H = LAB6 returns the handle to a new LAB6 or the handle to
%      the existing singleton*.
%
%      LAB6('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in LAB6.M with the given input arguments.
%
%      LAB6('Property','Value',...) creates a new LAB6 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Lab6_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Lab6_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help Lab6

% Last Modified by GUIDE v2.5 15-Apr-2012 12:48:02

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Lab6_OpeningFcn, ...
                   'gui_OutputFcn',  @Lab6_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before Lab6 is made visible.
function Lab6_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to Lab6 (see VARARGIN)

% Choose default command line output for Lab6
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes Lab6 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = Lab6_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;



function fxEdit_Callback(hObject, eventdata, handles)
% hObject    handle to fxEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of fxEdit as text
%        str2double(get(hObject,'String')) returns contents of fxEdit as a double


% --- Executes during object creation, after setting all properties.
function fxEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to fxEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function aEdit_Callback(hObject, eventdata, handles)
% hObject    handle to aEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of aEdit as text
%        str2double(get(hObject,'String')) returns contents of aEdit as a double


% --- Executes during object creation, after setting all properties.
function aEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to aEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function bEdit_Callback(hObject, eventdata, handles)
% hObject    handle to bEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of bEdit as text
%        str2double(get(hObject,'String')) returns contents of bEdit as a double


% --- Executes during object creation, after setting all properties.
function bEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to bEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function NEdit_Callback(hObject, eventdata, handles)
% hObject    handle to NEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of NEdit as text
%        str2double(get(hObject,'String')) returns contents of NEdit as a double


% --- Executes during object creation, after setting all properties.
function NEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to NEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end


% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
fx = get(handles.fxEdit, 'String');
f = inline(fx);
a = str2double(get(handles.aEdit, 'String'));
b = str2double(get(handles.bEdit, 'String'));
N  = str2double(get(handles.NEdit, 'String'));
step = (b - a) / N;
S = CubicSplineInterpolation(fx, a : step : b);
x = a : 0.1 : b;
cla;
hold on;
plot(x, f(x));
plot(x, ComputeSplineValue2(S, x), 'Color', 'red', 'Marker', '*');
x = (b - a) / 2;
s = ComputeSplineValue(S, x);
y = f(x);
u = abs(y - s);
set(handles.fpEdit, 'String', num2str(y));
set(handles.spEdit, 'String', num2str(s));
set(handles.uEdit, 'String', num2str(u));
str = SplineToString(S);


function fpEdit_Callback(hObject, eventdata, handles)
% hObject    handle to fpEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of fpEdit as text
%        str2double(get(hObject,'String')) returns contents of fpEdit as a double


% --- Executes during object creation, after setting all properties.
function fpEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to fpEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function spEdit_Callback(hObject, eventdata, handles)
% hObject    handle to spEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of spEdit as text
%        str2double(get(hObject,'String')) returns contents of spEdit as a double


% --- Executes during object creation, after setting all properties.
function spEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to spEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function uEdit_Callback(hObject, eventdata, handles)
% hObject    handle to uEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of uEdit as text
%        str2double(get(hObject,'String')) returns contents of uEdit as a double


% --- Executes during object creation, after setting all properties.
function uEdit_CreateFcn(hObject, eventdata, handles)
% hObject    handle to uEdit (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end
